From: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
To: Benjamin Gaignard <benjamin.gaignard@collabora.com>,
mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com,
ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar,
p.zabel@pengutronix.de, gregkh@linuxfoundation.org,
hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
linux-arm-msm@vger.kernel.org,
linux-rockchip@lists.infradead.org,
linux-staging@lists.linux.dev, kernel@collabora.com,
Daniel Almeida <daniel.almeida@collabora.com>
Subject: Re: [PATCH v15 30/56] media: test-drivers: Stop direct calls to queue num_buffers field
Date: Fri, 10 Nov 2023 10:35:20 +0100 [thread overview]
Message-ID: <0b79bb25-2e44-4a6d-b306-76477a2c8a08@collabora.com> (raw)
In-Reply-To: <20231109163512.179524-31-benjamin.gaignard@collabora.com>
Hi Benjamin,
W dniu 9.11.2023 o 17:34, Benjamin Gaignard pisze:
> Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
> This allows us to change how the number of buffers is computed in the
> future.
> If 'min_buffers_needed' is set remove useless checks in queue setup
> functions.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> CC: Daniel Almeida <daniel.almeida@collabora.com>
> ---
> drivers/media/test-drivers/visl/visl-dec.c | 4 ++--
> drivers/media/test-drivers/vivid/vivid-meta-cap.c | 3 ---
> drivers/media/test-drivers/vivid/vivid-meta-out.c | 5 +++--
> drivers/media/test-drivers/vivid/vivid-touch-cap.c | 5 +++--
> drivers/media/test-drivers/vivid/vivid-vbi-cap.c | 3 ---
> drivers/media/test-drivers/vivid/vivid-vbi-out.c | 3 ---
> drivers/media/test-drivers/vivid/vivid-vid-cap.c | 3 ---
> drivers/media/test-drivers/vivid/vivid-vid-out.c | 5 +----
> 8 files changed, 9 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
> index ba20ea998d19..4672dc5e52bb 100644
> --- a/drivers/media/test-drivers/visl/visl-dec.c
> +++ b/drivers/media/test-drivers/visl/visl-dec.c
> @@ -287,7 +287,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
> frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
>
> len = 0;
> - for (i = 0; i < out_q->num_buffers; i++) {
> + for (i = 0; i < vb2_get_num_buffers(out_q); i++) {
> char entry[] = "index: %u, state: %s, request_fd: %d, ";
> u32 old_len = len;
> struct vb2_buffer *vb2;
> @@ -347,7 +347,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
> frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
>
> len = 0;
> - for (i = 0; i < cap_q->num_buffers; i++) {
> + for (i = 0; i < vb2_get_num_buffers(cap_q); i++) {
> u32 old_len = len;
> struct vb2_buffer *vb2;
> char *q_status;
> diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.c b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
> index 780f96860a6d..0a718d037e59 100644
> --- a/drivers/media/test-drivers/vivid/vivid-meta-cap.c
> +++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
> @@ -30,9 +30,6 @@ static int meta_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> sizes[0] = size;
> }
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> -
> *nplanes = 1;
> return 0;
> }
> diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c
> index 95835b52b58f..4a569a6e58be 100644
> --- a/drivers/media/test-drivers/vivid/vivid-meta-out.c
> +++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c
> @@ -18,6 +18,7 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> struct device *alloc_devs[])
> {
> struct vivid_dev *dev = vb2_get_drv_priv(vq);
> + unsigned int q_num_bufs = vb2_get_num_buffers(vq);
> unsigned int size = sizeof(struct vivid_meta_out_buf);
>
> if (!vivid_is_webcam(dev))
> @@ -30,8 +31,8 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> sizes[0] = size;
> }
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> + if (q_num_bufs + *nbuffers < 2)
> + *nbuffers = 2 - q_num_bufs;
>
> *nplanes = 1;
> return 0;
> diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
> index c7f6e23df51e..4b3c6ea0afde 100644
> --- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c
> +++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
> @@ -13,6 +13,7 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> struct device *alloc_devs[])
> {
> struct vivid_dev *dev = vb2_get_drv_priv(vq);
> + unsigned int q_num_bufs = vb2_get_num_buffers(vq);
> struct v4l2_pix_format *f = &dev->tch_format;
> unsigned int size = f->sizeimage;
>
> @@ -23,8 +24,8 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> sizes[0] = size;
> }
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> + if (q_num_bufs + *nbuffers < 2)
> + *nbuffers = 2 - q_num_bufs;
>
> *nplanes = 1;
> return 0;
> diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
> index b65b02eeeb97..3840b3a664ac 100644
> --- a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
> +++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
> @@ -134,9 +134,6 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
>
> sizes[0] = size;
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> -
> *nplanes = 1;
> return 0;
> }
> diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
> index cd56476902a2..434a10676417 100644
> --- a/drivers/media/test-drivers/vivid/vivid-vbi-out.c
> +++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
> @@ -30,9 +30,6 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
>
> sizes[0] = size;
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> -
> *nplanes = 1;
> return 0;
> }
> diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
> index 3a06df35a2d7..2804975fe278 100644
> --- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
> +++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
> @@ -117,9 +117,6 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
> dev->fmt_cap->data_offset[p];
> }
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> -
> *nplanes = buffers;
>
> dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
here the format specifier for "*nbuffers" is "%d"...
> diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c
> index 184a6df2c29f..1653b2988f7e 100644
> --- a/drivers/media/test-drivers/vivid/vivid-vid-out.c
> +++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c
> @@ -73,12 +73,9 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
> vfmt->data_offset[p] : size;
> }
>
> - if (vq->num_buffers + *nbuffers < 2)
> - *nbuffers = 2 - vq->num_buffers;
> -
> *nplanes = planes;
>
> - dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
> + dprintk(dev, 1, "%s: count=%u\n", __func__, *nbuffers);
... but here you change it to "%u". Is there a reason for these two to be
different? I didn't notice it in the previous version but now it stands out
clearly. Probably you changed to %u because of the type returned by
vb2_get_num_buffers(). And, actually, *nbuffers _is_ unsigned, too.
Regards,
Andrzej
> for (p = 0; p < planes; p++)
> dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
> return 0;
next prev parent reply other threads:[~2023-11-10 9:35 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-09 16:34 [PATCH v15 13/56] media: mediatek: vcodec: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 14/56] media: sti: hva: Remove useless check Benjamin Gaignard
2023-11-10 9:24 ` Andrzej Pietrasiewicz
2023-11-09 16:34 ` [PATCH v15 15/56] media: visl: Use vb2_get_buffer() instead of directly access to buffers array Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 16/56] media: atomisp: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 17/56] media: atomisp: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 18/56] media: dvb-core: Use vb2_get_buffer() instead of directly access to buffers array Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 19/56] media: dvb-core: Do not initialize twice queue num_buffer field Benjamin Gaignard
2023-11-10 9:25 ` Andrzej Pietrasiewicz
2023-11-09 16:34 ` [PATCH v15 20/56] media: dvb-frontends: rtl2832: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 21/56] media: pci: dt3155: Remove useless check Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 22/56] media: pci: tw686x: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 23/56] media: pci: cx18: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 24/56] media: pci: netup_unidvb: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 25/56] media: pci: tw68: " Benjamin Gaignard
2023-11-10 9:26 ` Andrzej Pietrasiewicz
2023-11-09 16:34 ` [PATCH v15 26/56] media: i2c: video-i2c: " Benjamin Gaignard
2023-11-10 9:27 ` Andrzej Pietrasiewicz
2023-11-09 16:34 ` [PATCH v15 27/56] media: coda: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 28/56] media: nxp: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 29/56] media: verisilicon: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 30/56] media: test-drivers: " Benjamin Gaignard
2023-11-10 9:35 ` Andrzej Pietrasiewicz [this message]
2023-11-10 9:55 ` Benjamin Gaignard
2023-11-10 11:03 ` Andrzej Pietrasiewicz
2023-11-09 16:34 ` [PATCH v15 31/56] media: imx: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 32/56] media: meson: vdec: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 33/56] touchscreen: sur40: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 34/56] sample: v4l: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 35/56] media: cedrus: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 36/56] media: nuvoton: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 37/56] media: renesas: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 38/56] media: ti: " Benjamin Gaignard
2023-11-09 20:21 ` Lad, Prabhakar
2023-11-09 16:34 ` [PATCH v15 39/56] media: usb: airspy: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 40/56] media: usb: cx231xx: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 41/56] media: usb: hackrf: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 42/56] media: usb: usbtv: " Benjamin Gaignard
2023-11-09 16:34 ` [PATCH v15 43/56] media videobuf2: Be more flexible on the number of queue stored buffers Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 44/56] media: core: Report the maximum possible number of buffers for the queue Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 45/56] media: test-drivers: vivid: Increase max supported buffers for capture queues Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 46/56] media: test-drivers: vicodec: Increase max supported capture queue buffers Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 47/56] media: verisilicon: Refactor postprocessor to store more buffers Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 48/56] media: verisilicon: Store chroma and motion vectors offset Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 49/56] media: verisilicon: g2: Use common helpers to compute chroma and mv offsets Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 50/56] media: verisilicon: vp9: Allow to change resolution while streaming Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 51/56] media: core: Rework how create_buf index returned value is computed Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 52/56] media: core: Add bitmap manage bufs array entries Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 53/56] media: core: Free range of buffers Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 54/56] media: v4l2: Add DELETE_BUFS ioctl Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 55/56] media: v4l2: Add mem2mem helpers for " Benjamin Gaignard
2023-11-09 16:35 ` [PATCH v15 56/56] media: test-drivers: Use helper " Benjamin Gaignard
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